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night dial

noun
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Definition of night dial

1 : a dial showing time by the moon's shadow

— called also moondial

2 : a clockface made luminous at night by a light from behind or by radioluminescent paint

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“Night dial.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/night%20dial. Accessed 12 Jun. 2021.

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